Anchor Penta Modular 16AX 2Way SwitchAnchor Penta Modular 16AX 2Way Switch. The quality of Anchor Switches in what really helps us in staying ahead of our competitors. Anchor Penta Modular is a brand new offering from Anchor Penta, India’s first piano switch. Carrying the trust of unparalleled safety, Anchor Penta Modular 16AX 2Way Switch comes with a bold yet brilliant aesthetic appeal.